PCGame

Osmos

Physics puzzle game about absorbing motes while losing mass to move

Hemisphere Games · Released Aug 18, 2009

CasualIndie

Reviews
Very Positive
86% of 1,445
Recent reviews
Not enough recent
Players
2
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
6 years ago
Dec 9, 2019
Minimum PC
3D with OpenGL support. M…
0.5 GB RAM · 0 GB disk
Full requirements

Metacritic: 80/100 (critic reviews)

What is Osmos?

Osmos is a single-player, 2D physics puzzle game set among drifting motes. You absorb smaller motes to grow and eject some of your own mass to steer. Its levels introduce attractors, repulsors, and other motes that compete to grow.

For you if...

  • +you like quiet physics puzzles with electronic music
  • +you enjoy careful movement and increasingly difficult levels
  • +you like replaying random versions of familiar levels

Not for you if...

  • −you want constant action instead of slow drifting
  • −you dislike puzzles that require precise orbital adjustments

What players say

86% of 1,445 reviews are positive

Players praise the electronic soundtrack and the mix of calm play and tricky puzzles. Complaints focus on frustrating later orbital levels, long waits, and movement that feels too punishing.

How many players finish Osmos?

2.9% of Steam players have unlocked «Graduate of the Osmos», the achievement for finishing the main story.

Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.

Screenshots and trailer

Osmos screenshot 1

Osmos system requirements

Minimum: 3D with OpenGL support. M…, 0.5 GB RAM, 0 GB of disk space.

As published by the developer.

Can my PC run Osmos?

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Minimum

OS
Windows XP or Vista
Processor
1 GHz
Graphics
3D graphics card with OpenGL support. Minimum resolution 800x600
Memory
512 MB RAM
Storage
33 Mb

Does Osmos have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does Osmos run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some in-game text is small and may be hard to read
  • All functionality is accessible with the default controller configuration
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, macOS, Linux
Achievements
11
Steam features
Family Sharing
Languages
Text only: English, French, German, Spanish - Spain, Italian.

Does Osmos use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 25, 2026. How to filter AI games on Steam

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